Review for Display Quota by Gloops
Rated 3 out of 5 stars
Very useful for the two accounts I have with support of the quotas.
Just one thing : it is a pity you have to restart Thunderbird to free the status bar.
I regret that for most of my mail accounts the server does not support quotas, so for them I shall have to content myself of the display of the used size next to the folders.
One thing has to be said : the pop-up is no more a problem for a long time as you can choose if you want it or not.
To create your own collections, you must have a Mozilla Add-ons account.